So many of those GM 632's are going to be racing us this ?

coming summer? In case anyone missed the intro to their new factory 632/1000hp

https://www.cnet.com/roadshow/news/gm-crate-engine-zz632-1000-horsepower/

https://www.chevrolet.com/performance-parts/crate-engines/big-block/zz-632

Pretty cool that it comes with a throttle body and fuel injector rails/injectors.

Does it come with all the electronics to run the injection? I don't know what Chevy "58X" ignition is...
Summit web site says, "Requires an EFI compatible high pressure fuel pump, starter, and air cleaner with 4500 style flange. "
I see Summit shows $29,500

The 632 is really quite complete; including EFI controller.

Our Deluxe package comes complete from the oil pan to the throttle body, as well as a
crank-trigger ignition system with coil-near-plug ignition coils mounted on a unique
valley plate, plug wires, water pump, balancer and an aluminum single-plane intake
manifold. The assembly also includes Chevy Orange valve covers with the “632” logo.

INSTALLATION NOTES
• Crate engine kit includes pre-programmed, self-learning control system
• Due to crate fitment, the throttle body is shipped uninstalled and must be
installed by the engine installer
• Requires starter, EFI-compatible high-pressure fuel pump and air cleaner
compatible with 4500-series (Dominator) mounting flange
• Cylinder head exhaust port design requires custom exhaust system
• Requires internally balanced flywheel for manual transmission applications
• Not intended for marine applications

While $30K might seem like a lot, if it is properly machined, assembled, and comes with usable tune, it isn't outrageous.

$30K is a killer deal for that engine. One of the race teams that I work with has spent way more than that on engines that make less power. Some guys just like to roll their own stuff but production line stuff is better and cheaper as long as the production line is properly managed.

There are yes's and no's to what you said about production line stuff, but, if gauges are implemented correctly, it will be good when it gets to your door. My guess is this is a small shop GM outsourced to assemble these...And not a full on regular production line like the old Marine engines.

Looks like an awesome engine.

I noticed the intake manifold has another set of cast in bungs higher in the runner. Would be interesting to try 2 sets of injectors for low and high rpm.

Agree, it seems like a good package. The rpm max recommendation might take some planning, or pose some limitations, for some applications.

Along with the 7,000 rpm recommended limit,
I wonder how well the Hydraulic Roller lifters will control things way before that limit.

I think we have a member here who had his hand in the engine design, maybe he will chime in.

There is a good number of Hydrualic roller LS combos that run well over 7000 rpm. Some of them in cars that can run bottom 7s@180-190.

The valvetrain is most likely going to end the party, but GM did it right with shaft rockers(T&D seems a good bet as GM has fitted a crate engine with T&D before(LSX454R)) Ti valves and ovate wire beehive springs.

Here's the assembled head propaganda from GM(I called Scoggin-Dickey roughly 2 weeks ago and GM didn't yet have a price ... "Much" is my guess):
Fully machined and assembled; 449cc intake port; 161cc exhaust port; 70cc combustion chamber;

2.450"/1.800" titanium valves with 5
⁄16" stem OD; Ovate wire-type beehive valve springs with 1.589" OD
(large end); Steel 10-deg. retainers with 1.115" OD

On Edit: We turned a hydraulic roller cam motor 7900 RPM for more than 100 1/4 mi. passes without issue. It was an LS with turned down valves and was otherwise remarkably stock, with only pushrods, PSI beehive springs and help from a guy that has hammered the OE parts. Stock rocker arms with upgraded trunnions, partially shimmed stock hydraulic lifters, and other stock junk. It sounded fine for short bursts at well above 7500 RPM, and if I knew what I was doing I might have dared to push it to 8,000 RPM.

The heads look like nice pieces. Here's a pic and flow data:

Yeah that is a good design and some great parts. Some crate engines are built with cheap parts but you can tell by looking at that cylinder head that it is built right.